Started four months ago. First, I was swimming in a pool and my finger tip felt like they were asleep or little needles in them. Second, and this was a different day started having panic attacks and heart was ready to jump out of my chest and this went on for about a month. Third, pain in the back of my legs below my butt Almost to where I can't pick anything off the ground. And having erectile dysfunction problem and burning out at the gym. Like I can't lift a pound. Now I'm no doctor but somethings going on with blood flow.